TY - JOUR
T1 - In-situ noise level mapping for vehicle floor carpet
AU - Dilla, Edsil M.
AU - Wang, Xu
AU - Subic, Aleksandar
PY - 2009
Y1 - 2009
N2 - Noise level mapping of test vehicles' floor carpets was undertaken for three frequency bands, that is, low-(<500 Hz), middle- (500-2,000 Hz) and high-frequency regions (>2,000 Hz) to compare noise control treatment performance and effectiveness. On-road tests including idling conditions and constant speed tests of 40, 60 and 80 kph were undertaken. Noise level contour maps indicate that the luxury class test vehicle is most affected by very low-frequency noise but exhibit superior performance in the middle- and high-frequency ranges. The other two test cars are vulnerable to middle- and high-frequency noise incursion at moderately high levels. Through comparison of transmission loss measurements, using an impedance tube, critical carpet sections were identified for further noise control treatment on each carpet. Sound pressure level measurements from driver's ear level location indicate that the luxury class test vehicle has the superior in-cabin acoustic package.
AB - Noise level mapping of test vehicles' floor carpets was undertaken for three frequency bands, that is, low-(<500 Hz), middle- (500-2,000 Hz) and high-frequency regions (>2,000 Hz) to compare noise control treatment performance and effectiveness. On-road tests including idling conditions and constant speed tests of 40, 60 and 80 kph were undertaken. Noise level contour maps indicate that the luxury class test vehicle is most affected by very low-frequency noise but exhibit superior performance in the middle- and high-frequency ranges. The other two test cars are vulnerable to middle- and high-frequency noise incursion at moderately high levels. Through comparison of transmission loss measurements, using an impedance tube, critical carpet sections were identified for further noise control treatment on each carpet. Sound pressure level measurements from driver's ear level location indicate that the luxury class test vehicle has the superior in-cabin acoustic package.
UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84872701250&doi=10.1504%2fIJVNV.2009.031026&partnerID=40&md5=1d92aebd4f31bb9c15d6dfd0a41f0f1d
UR - https://www.inderscience.com/offers.php?id=31026
U2 - 10.1504/IJVNV.2009.031026
DO - 10.1504/IJVNV.2009.031026
M3 - Article
VL - 5
SP - 193
EP - 204
JO - International Journal of Vehicle Noise and Vibration
JF - International Journal of Vehicle Noise and Vibration
IS - 3
ER -